GOD's word: Why I think Good will triumph over Evil?

Mother's love for her child.

God created this Multiverse with Five Elements and Intelligent Life with Souls.

Did Earth ever stopped carrying us? Did Sun ever stopped rising? Did Earth ever stopped rotation or revolution around Sun? No, right!!!
Did Fire ever stopped burning? No, right!!!
Did Wind/Air ever stop carrying fragrance? No, right!!!
Did Water ever stopped satisfying our thirst? No, right!!!
Did Sky/Space ever fell on us? No, right!!!

This is the cosmic balance of God's Creation. The moment the cosmic balance goes away due to Evil, The God's Creation will perish. That is why God, who loves His Creation, ensures Good triumphs over Evil always.